From a646b691b54cdb44fd404ab1a1332ee1bc8d7d25 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <esmil@mailme.dk>
Date: Fri, 11 Mar 2011 12:15:30 +0100
Subject: Makefile: use pkg-config

---
 Makefile | 45 +++++++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 20 deletions(-)

diff --git a/Makefile b/Makefile
index ca0b6b5..978ac73 100644
--- a/Makefile
+++ b/Makefile
@@ -1,32 +1,33 @@
-CC      = gcc
-CFLAGS  ?= -O2 -pipe -Wall -Wextra -Wno-variadic-macros -Wno-strict-aliasing -I$(shell pg_config --includedir)
-LDFLAGS ?= -L$(shell pg_config --libdir)
-STRIP   = strip
-INSTALL = install
+CC         = gcc
+CFLAGS    ?= -O2 -pipe -Wall -Wextra -Wno-variadic-macros -Wno-strict-aliasing
+PKGCONFIG  = pkg-config
+STRIP      = strip
+INSTALL    = install
 
-LUA_VERSION = 5.1
-PREFIX      = /usr/local
-LIBDIR      = $(PREFIX)/lib/lua/$(LUA_VERSION)/lem
+CFLAGS    += $(shell $(PKGCONFIG) --cflags lem)
+LUA_PATH   = $(shell $(PKGCONFIG) --variable=path lem)
+LUA_CPATH  = $(shell $(PKGCONFIG) --variable=cpath lem)
 
 programs = postgres.so
 scripts  = queued.lua
 
 ifdef NDEBUG
-DEFINES+=-DNDEBUG
+CFLAGS += -DNDEBUG
 endif
 
-.PHONY: all strip install indent clean
+.PHONY: all strip install clean
 .PRECIOUS: %.o
 
 all: $(programs)
 
 %.o: %.c
 	@echo '  CC $@'
-	@$(CC) $(CFLAGS) -I$(PREFIX)/include -fPIC -nostartfiles $(DEFINES) -c $< -o $@
+	@$(CC) $(CFLAGS) -fPIC -nostartfiles -c $< -o $@
 
-%.so: %.o
+postgres.so: CFLAGS += -I$(shell pg_config --includedir)
+postgres.so: postgres.o
 	@echo '  LD $@'
-	@$(CC) -shared -lpq $(LDFLAGS) $^ -o $@
+	@$(CC) -shared -L$(shell pg_config --libdir) -lpq $(LDFLAGS) $^ -o $@
 
 %-strip: %
 	@echo '  STRIP $<'
@@ -34,17 +35,21 @@ all: $(programs)
 
 strip: $(programs:%=%-strip)
 
-libdir-install:
-	@echo "  INSTALL -d $(LIBDIR)"
-	@$(INSTALL) -d $(DESTDIR)$(LIBDIR)/postgres
+path-install:
+	@echo "  INSTALL -d $(LUA_PATH)/lem/postgres"
+	@$(INSTALL) -d $(DESTDIR)$(LUA_PATH)/lem/postgres
 
-%.lua-install: %.lua libdir-install
+%.lua-install: %.lua path-install
 	@echo "  INSTALL $<"
-	@$(INSTALL) $< $(DESTDIR)$(LIBDIR)/postgres/$<
+	@$(INSTALL) -m644 $< $(DESTDIR)$(LUA_PATH)/lem/postgres/$<
 
-%.so-install: %.so libdir-install
+cpath-install:
+	@echo "  INSTALL -d $(LUA_CPATH)/lem"
+	@$(INSTALL) -d $(DESTDIR)$(LUA_CPATH)/lem
+
+%.so-install: %.so cpath-install
 	@echo "  INSTALL $<"
-	@$(INSTALL) $< $(DESTDIR)$(LIBDIR)/$<
+	@$(INSTALL) $< $(DESTDIR)$(LUA_CPATH)/lem/$<
 
 install: $(programs:%=%-install) $(scripts:%=%-install)
 
-- 
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